package com.atguigu.config;

import com.alibaba.dubbo.config.annotation.Reference;
import com.atguigu.entity.Admin;
import com.atguigu.entity.Permission;
import com.atguigu.service.AdminService;
import com.atguigu.service.PermissionService;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

@Component
public class MyUserDetailService implements UserDetailsService {

    @Reference
    private AdminService adminService;

    @Reference
    private PermissionService permissionService;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        Admin admin = adminService.getByUsername(username);
        System.out.println(admin.getPassword());
        if (admin == null) {
            throw new UsernameNotFoundException("用户名不存在");
        }
        List<String> codeList = permissionService.findCodeListByAdminId(admin.getId());
        Collection<GrantedAuthority> authorities = new ArrayList<>();
        for (String code : codeList) {
            if(StringUtils.isEmpty(code)) {continue;}
            authorities.add(new SimpleGrantedAuthority(code));
        }
        return new User(username, admin.getPassword(), authorities);
    }
}
